Where the Practice Came From
The custom of tipping has unclear origins, but most historians trace its modern form to Tudor England. Wealthy households would give visiting guests a small coin - a 'vail' - to ensure good service from servants. The practice spread to coffee houses, inns, and taverns, where patrons began tipping staff directly.
The word itself is debated. One popular but unverified story is that 'TIP' was an acronym for 'To Insure Promptitude' printed on bowls in 18th-century English coffee houses. Linguists generally reject this, noting that the word appears earlier as a slang term meaning to give or hand over, likely from the Romani word 'tip' meaning to pass. The acronym explanation is almost certainly a folk etymology invented after the fact.
Tipping crossed the Atlantic to America in the 19th century, but it was initially controversial. Many Americans saw it as an aristocratic European habit incompatible with democratic values. Several states actually passed laws abolishing tipping between 1909 and 1926, though these were eventually repealed or ignored. By the mid-20th century, tipping had become firmly embedded in American restaurant culture.
Why 15 to 20 Per Cent Became Standard
The 15 per cent standard in the United States is not ancient. Through the 1950s and 1960s, 10 per cent was the norm for restaurant tipping. The standard crept upward over the following decades - 12 per cent in the 1970s, 15 per cent by the 1980s, and 18 to 20 per cent by the 2010s.
Several factors drove this increase. Inflation pushed prices up, but since tips are a percentage of the bill, they automatically scale with price - so inflation alone does not explain the upward creep. A more significant factor is the structure of American wage laws.
In the United States, the federal tipped minimum wage has been frozen at $2.13 per hour since 1991. Restaurants can pay tipped staff well below the standard minimum wage on the assumption that tips will make up the difference. As the gap between the tipped wage and a living wage widened over three decades, social pressure pushed tip percentages upward to compensate.
The result is a tipping culture where 20 per cent is increasingly seen as the baseline for adequate service, with 25 per cent or more for good service - significantly higher than in most other countries.
The Geography of Tipping
Tipping practices vary enormously. In Japan and South Korea, tipping is not customary and can even be considered insulting - good service is understood as a standard part of the job, not something that requires extra payment. In many European countries, a service charge of 10 to 15 per cent is already included in the bill, and rounding up or leaving small change is appreciated but not expected.
In Australia and New Zealand, staff are paid a full minimum wage and tipping is not standard, though it has become more common in upscale restaurants influenced by American media. In many South American countries, a 10 per cent service charge (propina voluntaria) is added to the bill and is technically optional but almost always paid.
The key distinction is whether service staff are paid a full wage. In countries where they are, tipping is a genuine bonus for exceptional service. In countries with a tipped wage structure, like the United States, tipping is effectively mandatory - the worker's income depends on it.
The Economic Argument
Economists have studied tipping extensively, and the findings are not always intuitive. Studies show that tip amounts correlate weakly with service quality - the correlation is typically around 0.02 to 0.11, meaning service quality explains only a small fraction of the variation in tips.
What does correlate with tip amounts? Server attractiveness, the diner's mood, whether the server touched the diner's shoulder briefly, whether the server drew a smiley face on the check, and whether the sun was shining. None of these relate to service quality. This suggests that tipping is driven more by social and emotional factors than by a rational assessment of service.
There is an active debate about whether tipping should be abolished in favour of service-included pricing. Proponents argue it would eliminate wage instability for workers, remove the bias in who gets tipped (studies show racial and gender disparities in tip amounts), and simplify the dining experience. Opponents argue that tipping incentivises good service and that many servers earn more under tipping than they would under a fixed wage.
Calculating Fairly in Practice
When tipping, the calculation is simple mathematically but nuanced socially. The base calculation is the pre-tax subtotal multiplied by the tip percentage. On a £50 bill with a 15 per cent tip, that is £7.50, for a total of £57.50.
The complication is what to tip on. Most etiquette guides suggest tipping on the pre-tax subtotal, since tax is not a service provided. In practice, many people tip on the total including tax, because the difference is small and the calculation is simpler. On a £50 bill with 20 per cent VAT, the difference between tipping on £50 versus £60 is £1.50 at 15 per cent - small, but not nothing.
When splitting a bill among a group, the simplest fair approach is to calculate the tip on the total bill, then divide the total (including tip) by the number of people. If people ordered very different items, a more equitable approach is to have each person calculate a tip on their own subtotal - but this requires honesty and effort, which is why equal splitting remains the default for most groups.
For services beyond restaurants - taxi rides, hotel housekeeping, food delivery, haircuts - tipping expectations differ by service and region. When in doubt, a general guideline is to research the local norm for the specific service before travelling to a new country.
